151Eu Mössbauer spectroscopic and XRD study on some fluorite-type solid solution systems, EuyM1−yO2−y/2 (M=Zr, Hf, Ce)

  • N. M. Masaki
  • H. Otobe
  • A. Nakamura
  • N. R. D. Guillermo
  • Y. Izumiyama
  • D. Harada
  • Y. Hinatsu
Conference paper

Abstract

151Eu Mössbauer spectroscopy and powder x-ray diffractometry (XRD) have been applied to elucidate the local structure around the trivalent europium (Eu3+) in the titled three defect-fluorite systems. From this study, it has been clarified that in contrast to Eu-Ce system the stabilized cubic-fluorite phase in Eu-Zr and Eu-Hf systems has most likely a pyrochlore-type local structure (microdomain structure).

Keywords

Zirconia Euro Pium Fluorite Hafnias Koto 

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Copyright information

© Springer Science+Business Media Dordrecht 2002

Authors and Affiliations

  • N. M. Masaki
    • 1
  • H. Otobe
    • 1
  • A. Nakamura
    • 1
  • N. R. D. Guillermo
    • 2
  • Y. Izumiyama
    • 3
  • D. Harada
    • 3
  • Y. Hinatsu
    • 3
  1. 1.Department of Materials ScienceJapan Atomic Energy Research InstituteTokai-muraJapan
  2. 2.Philippine Nuclear Research InstituteQuezon cityPhilippine
  3. 3.Department of ChemistryHokkaido UniversitySapporoJapan

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